Dirty window.. inevitable in the 3 series?

drvai · 04-20-2010, 05:34 PM

My windows gets dirty every time I roll them down.... They can be crystal clear, but once they go down and back up, you see severals white streaks on them.

I heard the 3 series have this problem...

Anyone has experienced this or has a solution?

I must open my window twice a day to get in and out of my parking lot.

ibimmer954 · 04-20-2010, 06:08 PM

No, I don't really have that issue when opening the window completely. I do notice a line at the bottom of the window though. It seems to be from the fact the window opens a small amount when you open the door and closes again after the door is shut on the E93.

Kylekuu · 04-20-2010, 06:15 PM

sounds like it's overgreased or there is dirt on the inner liner(whatever it's called that touches the window)..try wiping that down with a wet cloth

pander5 · 04-20-2010, 06:31 PM

I had this same thing and Kylekuu nailed what worked for me. Look at where the lines appear on your glass then lower your window completely. You'll probably find some debris on the felt pieces that pinch onto the glass when it's moving.

I took some masking tape and rolled it around a ruler with the adhesive side out. I then worked the tape/ruler across the felt pieces in between. I then took some AIO and a MF towel and cleaned the heck out of the felt pieces. I would imagine a good APC might do as well.

Result? No more streaking (for a while). I need to do this about once or twice a year.

drvai · 04-20-2010, 06:51 PM

Will try it.. thanks!

jopa489 · 04-20-2010, 07:58 PM

I'm going to have to try that too.

bulldozer3 · 04-21-2010, 12:36 PM

I noticed that I would get lint and other stuff stuck on the felt around the moonroof (on the outside of the car), so I started wrapping masking tape in loops with the sticky side out and running it along the felt - and it works great. Probably do it every couple of washes.

04-20-2010, 05:34 PM	#1
drvai Major 136 Rep 1,274 Posts Drives: E92 M3 AW Join Date: Dec 2007 Location: FL iTrader: (0)	Dirty window.. inevitable in the 3 series? My windows gets dirty every time I roll them down.... They can be crystal clear, but once they go down and back up, you see severals white streaks on them. I heard the 3 series have this problem... Anyone has experienced this or has a solution? I must open my window twice a day to get in and out of my parking lot.
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04-20-2010, 06:08 PM	#2
ibimmer954 Major 138 Rep 1,424 Posts Drives: '23 i4 M50, '15 M3, '18 911 Join Date: Jul 2007 Location: San Diego, California, USA iTrader: (0) Garage List 2015 BMW M3 [9.75] 2023 BMW i4 M50 [0.00] 2018 Porsche 911 C4S [0.00] 2019 BMW X4 M40i [0.00]	No, I don't really have that issue when opening the window completely. I do notice a line at the bottom of the window though. It seems to be from the fact the window opens a small amount when you open the door and closes again after the door is shut on the E93.
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04-20-2010, 06:15 PM	#3
Kylekuu Captain 30 Rep 679 Posts Drives: 08 328xi, 84 318i Join Date: Oct 2007 Location: Kenosha, WI iTrader: (0)	sounds like it's overgreased or there is dirt on the inner liner(whatever it's called that touches the window)..try wiping that down with a wet cloth
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04-20-2010, 06:31 PM	#4
pander5 Special Forces - Discretion is superior 31 Rep 1,011 Posts Drives: 335i Coupe Sapphire Black Join Date: Mar 2006 Location: Tampa, FL iTrader: (0) Garage List 2007 335i Coupe [0.00]	I had this same thing and Kylekuu nailed what worked for me. Look at where the lines appear on your glass then lower your window completely. You'll probably find some debris on the felt pieces that pinch onto the glass when it's moving. I took some masking tape and rolled it around a ruler with the adhesive side out. I then worked the tape/ruler across the felt pieces in between. I then took some AIO and a MF towel and cleaned the heck out of the felt pieces. I would imagine a good APC might do as well. Result? No more streaking (for a while). I need to do this about once or twice a year. __________________ M3 + trailer hitch = oxymoron
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04-20-2010, 06:51 PM	#5
drvai Major 136 Rep 1,274 Posts Drives: E92 M3 AW Join Date: Dec 2007 Location: FL iTrader: (0)	Will try it.. thanks!
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04-20-2010, 07:58 PM	#6
jopa489 Major General 122 Rep 6,594 Posts Drives: Anything with Wheels Join Date: Mar 2009 Location: USA iTrader: (9)	I'm going to have to try that too. __________________ X7 LCI // Incoming C7 ZR1 ZTK // Sebring + TRX // Hydro + Raptor Gen1 Roush // Tuxedo
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04-21-2010, 12:36 PM	#7
bulldozer3 New Member 1 Rep 23 Posts Drives: 2010 E90 335i M-sport Le mans Join Date: Mar 2010 Location: Denver, CO iTrader: (0)	I noticed that I would get lint and other stuff stuck on the felt around the moonroof (on the outside of the car), so I started wrapping masking tape in loops with the sticky side out and running it along the felt - and it works great. Probably do it every couple of washes.
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